zookeeper (single machine, pseudo cluster, cluster) deployment

ZooKeeper is a distributed, open-source, distributed application coordination service that enables application configuration management, unified naming service, and state synchronization service in a distributed environment.ZooKeeper is a highly available, high-performance open source coordination service designed for distributed applications, ...

Posted on Sat, 04 Apr 2020 19:03:04 -0400 by freelance84

producer of kafka manometry

background Recently, we built a large data platform by ourselves. Due to time problems and tight schedule, we could not measure the platform.Now that the platform is built, it is planned to test the platform components one by one. Welcome to correct, don't spray! Pressure Target Tests the ability of the Kafka cluster to write and consume messag ...

Posted on Sat, 04 Apr 2020 11:37:12 -0400 by yogicasey

ZooKeeper --- installation configuration

Zookeeper: 1. It can be used as a cluster management tool. 2. Profiles can be managed centrally. 1.1.1. Installation of Zookeeper Installation environment: Linux: centos6.4 JDK: above 1.7 Zookeeper is developed by java and can run in windows and linux environment. The jdk needs to be installed first. Installation steps: Step 1: insta ...

Posted on Sat, 04 Apr 2020 02:13:10 -0400 by pheagey

Alibaba cloud ESC centos7 installation of zookeeper

1. Create the / usr/local/zookeeper folder: mkdir -p /usr/local/zookeeper 2. Go to the / usr/local/zookeeper Directory: cd /usr/local/zookeeper 3. Download zookeeper-3.5.3-beta.tar.gz wget https://mirrors.tuna.tsinghua.edu.cn/apache/zookeeper/zookeeper-3.5.3-beta/zookeeper-3.5.3-beta.tar.gz 4. Decompress zookeeper-3.5.3-beta.tar.gz: tar -zxvf z ...

Posted on Fri, 03 Apr 2020 06:05:59 -0400 by nmcglennon

High availability distributed clickhouse cluster construction

Introduce clickhouse stand-alone and highly available distributed architecture How to build a docker #Server image using yandex docker pull yandex/clickhouse-server #Client image using yandex docker pull yandex/clickhouse-client The Dockerfile of yandex / clickhausue server is as follows, which can be used for user-defined image constru ...

Posted on Thu, 02 Apr 2020 19:46:42 -0400 by tomfra

Introduction and installation of Zookeeper (2)

1, Introduction: Zookeeper is a distributed coordination service, which provides the following services: Naming service: similar to DNS, but only for nodes Configuration management: management of service configuration information Cluster management: Dubbo uses Zookeeper to achieve service governance Distributed lock: select a leader so that onl ...

Posted on Mon, 30 Mar 2020 16:14:22 -0400 by dinku33

Explanation of Dubbo's principles and high availability testing using zookeeper as a registry

Foreword: Today we will explain to you the principle of Dubbp invocation, and a demo test to show you the running process of Dubbo.In the previous article, we talked about-- Zookeeper Installation Test for Dubbo and Building Zookeeper Cluster In which we have already talked about the building of Zookeeper cluster. Today we will also use this cl ...

Posted on Fri, 27 Mar 2020 00:12:35 -0400 by SilverFoxDesign

zookeeper failed to start because the database could not be read

Recently, our cluster is in an abnormal state. It was found that it failed all the time when starting zk. After reading the log, it was really sad. If it was in black, it was reported in minutes. At first, I didn't really want to understand why it was so difficult to start zk, and it failed stably in about 5s. After a while, it can be judged t ...

Posted on Mon, 23 Mar 2020 22:27:12 -0400 by brianlange

Hadoop learning - HBASE installation, command line operation and java operation

Before using HABSE, install a zookeeper I used to write https://www.cnblogs.com/wpbing/p/11309761.html   Let's briefly introduce HBASE HBASE is a database, which can provide real-time random reading and writing of data He is a nosql database, which is not structured. He can only do some rough queries, such as the connection query between m ...

Posted on Mon, 23 Mar 2020 20:06:05 -0400 by jdbfitz

log4j does not output in springboot and controls third-party log level

Configuration (log4j.properties) log4j.rootLogger = debug,stdout,D,E,DB ### Output information to control lift ### log4j.appender.stdout = org.apache.log4j.ConsoleAppender log4j.appender.stdout.Target = System.out #### change to info in deployed env.### log4j.appender.stdout.Threshold = DEBUG log4j.appender.stdout.layout = org.apache.log4j.Pa ...

Posted on Sat, 21 Mar 2020 13:38:05 -0400 by Sillysoft